Getting SharePoint List Items from Picture Library in CEWP

Step 1:

Add CEWP on page and GO to Edit Webpart and then click on html on top of the page and Add Jquery and SPservice Reference

<script src="/sites/BGL/SiteAssets/jquery-2.1.1.js" type="text/javascript"></script><script src="/sites/BGL/SiteAssets/jquery.SPServices-2014.01.js" type="text/javascript"></script><script type="text/javascript">

Step 2:-

Add below simple code to get the list items, Don't forget to provide your listName

$(document).ready(function(){
alert("CEWP inside");
            $().SPServices({
                operation: "GetListItems",
                async: false,
                listName: "BGLBanners",
                CAMLRowLimit: 6,
                completefunc: function (xData, Status) {
  $(xData.responseXML).SPFilterNode("z:row").each(function() {
         var _url = '/' + $(this).attr("ows_RequiredField");
  alert(_url);
   var img_Size= $(this).attr("ows_ImageSize");
               alert(img_Size);
       
      });            
                }
            });
        });
</script>


All the best :)